I have a pup with a diagnosis of HD and I know his sister (Hi Danniyell & Hudson) has a "funky" back end. Same thing I called it till we were diagnosed. No diagnosis on Hudson as of yet but Yukon is a definite and they are brother and sister. There were 11 supposedly in the litter so we may find more realatives through the Berner - L. That's how I found Yukon's sister. If the info I have on Yukon and then any further vet visits for Hudson would be helpful I'd be willing to forward my info.
Kristin 0'Neill & Yukon South Boston